TB Spectrogram vs Warp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TB Spectrogram
This app provides real-time audio analysis with a spectrogram, spectrum analyzer, and goniometer. It can be used as a standalone application or as an AUv3 plugin within compatible music production hosts. Visualize your audio in detail with adjustable settings and multiple display options.
- Real-time spectrogram and spectrum analysis
- Goniometer for stereo signal analysis
- AUv3 plugin compatibility
- Adjustable frequency and time resolution
- Customizable color themes
- On-screen piano keyboard mapping
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ToneBoosters Spectrogram shows a real-time spectrogram, spectrum, and goniometer AUv3 plugin! We have taken the stunning visual spectrum analyzer features from our latest and greatest Equalizer Pro plugin and released it as a separate app / AUv3 plugin! The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Spectrogram will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Fully resizable (as AUv3 plugin) - Color themes for the user interface - Max screen support in Garageband - Adjustable color themes for UI and for spectrogram independently - Adjustable dynamic range - Adjustable frequency resolution - Adjustable time resolution - Adjustable spectral slope - Spectrogram AGC and dimming support - Show spectrogram and spectrum analyzer as overlay or individually - Spectrum analyzer also supports peak hold - Split-band goniometer for stereo signal analysis (correlation, left/right balance in one or two bands!) - On-screen piano keyboard to map spectrum analyzer to piano notes - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.
Warp
This music app offers creative pitch shifting and time stretching with minimal audio artifacts. It allows independent control of pitch and time for unique sound manipulation, including classic tape-stop effects.
- Artifact-free varispeed control
- Independent pitch and time stretching
- Classic tape-stop effect
- AUv3 compatibility
- Developed with Andrew Huang
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Warp is one of the most popular effect modules in Transit 2, our plugin collaboration with Andrew Huang. Now on iOS with full AUv3 compatibility, Warp is available as a free app for creative pitch shift and time stretch effects. Just like the module inside Transit 2, Warp allows you to speed up or slow down audio with fewer artifacts than other plugins. Additionally, use the Stretch knob to control the pitch of your track independently of the time and achieve extreme effects such as slowing audio down while pitching it up. Features: - A clean and artifact-free varispeed control to speed up audio or slow it down to a standstill for a classic Tape-Stop effect. - Use the ‘Stretch’ knob to control pitch independent of time for unhinged audio mangling. - Powered by Transit 2 and developed with Andrew Huang - AUv3 compatibility for use inside your favorite mobile DAW
Screenshots
Verdict
The clearest difference is monetization model: Warp at free against TB Spectrogram's paid. Warp also leads on rating (4.9 vs 4.4) and iOS requirement (11.0 vs 13.0). TB Spectrogram's advantage is ratings volume (50 vs 11). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Warp holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 50 and 11 respectively. Written reviews complicate that: 71% of TB Spectrogram's written reviews are positive against 67% of Warp's, so the app with the better star average is not the one people write more warmly about.
| Parameter | TB Spectrogram | Warp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (50 ratings) | 4.9 (11 ratings) — better |
| Positive reviews | 71.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 50 — better | 11 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ToneBoosters | Baby Audio Inc. |
Customer experience
TB Spectrogram
Warp
In-app purchases
TB Spectrogram
No in-app purchases
Warp
No in-app purchases









